joi, 11 decembrie 2014

VLF monitor


VLF and SID monitor

 

DHO38

DHO38, Rhauderfehn, Germany. Click on image for larger version.
| Data


Sfreic Intensity 5-9kHz

24 Hour Average Sferic Level 5-9kHz (click graph for larger
image) | Data

 
 
Hum Levels 24 Hr
24 Hour Average Hum Level (click graph for larger image) | Data